AERODYNAMICALLY ALLEVIATED MARINE VEHICLES (AAMV): DEVELOPMENT OF A MATHEMATICAL FRAMEWORK TO DESIGN HIGH SPEED MARINE VEHICLES WITH AERODYNAMIC SURFACES

摘要

In the last few decades, interest in high speed marine vehicles, both in civil and military marine transportation, has motivated the marine engineering community to develop new configurations [1]. Among these, the 'aerodynamic alleviation concept' [2] consists of using one or more aerodynamic surfaces to alleviate the weight of marine vehicles. The advantages are: lower hydrodynamic drag better damping of heave and pitch accelerations. At Cranfield University a research programme to study AAMV started five years ago. Firstly, an AAMV equilibrium attitude model has been developed and implemented in MATLAB [3]. Similar to the Savitsky model for planing craft [4], this model is able to estimate the attitude of a given AAMV. Secondly, the vehicle stability has been studied by developing a specific system of equations of motion, using a small disturbances assumption [5]. This article presents a possible AAMV configuration that illustrates the potential of such configurations and how mathematical models can be used as design tools.